[嵌入式]__HAL_TIM_GET_COUNTER函数解析

?Drivers\STM32F4xx_HAL_Driver\Inc\stm32f4xx_hal_tim.h中：

/**
  * @brief  Get the TIM Counter Register value on runtime.
  * @param  __HANDLE__ TIM handle.
  * @retval 16-bit or 32-bit value of the timer counter register (TIMx_CNT)
  */
#define __HAL_TIM_GET_COUNTER(__HANDLE__)  ((__HANDLE__)->Instance->CNT)

?STM32F4xx中文参考手册

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438页

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对应固件库函数

/**
  * @brief  Gets the TIMx Counter value.
  * @param  TIMx: where x can be 1 to 17 to select the TIM peripheral.
  * @retval Counter Register value.
  */
uint16_t TIM_GetCounter(TIM_TypeDef* TIMx)
{
  /* Check the parameters */
  assert_param(IS_TIM_ALL_PERIPH(TIMx));
  /* Get the Counter Register value */
  return TIMx->CNT;
}